THC in urine: The elimination half-life of marijuana ranges from 14-38 hours. At the initial cutoff of 50 ng/ml, the daily user will remain positive for perhaps 7 to 30 days after cessation. At the confirmation level of 15 ng/ml, the frequent user will be positive for perhaps as long as 15 weeks. www.healthy.net/scr/article.aspx?id=8085.
Answered 11/18/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
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